Acrylic acid purification and light component removal tower

Abstract

The invention relates to the field of light component removal towers, specifically to an acrylic acid purification and light component removal tower. The acrylic acid purification and light componentremoval tower comprises an acrylic acid purification and light component removal tower body, a rectification section sieve plate, a filter screen mechanism, a cooling mechanism and a separation mechanism, wherein a feeding pipe communicating with the interior of the acrylic acid purification and light component removal tower body is fixedly connected to the middle part of the acrylic acid purification and light component removal tower body, and a gas outlet pipe is arranged at the top of the acrylic acid purification and light component removal tower body; the rectification section sieve plateis mounted in the acrylic acid purification and light component removal tower body, and is positioned above the feeding pipe; the filter screen mechanism is mounted in the acrylic acid purification and light component removal tower body, and is positioned above the feeding pipe; the cooling mechanism is connected with the acrylic acid purification and light component removal tower body; and the separation mechanism is connected to the interior of the acrylic acid purification and light component removal tower body. The acrylic acid purification and light component removal tower provided by the invention has the advantages of short acrylic acid production period and capability of reducing the blockage probability of the rectification section sieve plate.

Description

technical field [0001] The invention relates to the field of light removal towers, in particular to an acrylic acid purification light removal tower. Background technique [0002] Acrylic acid is an unsaturated organic acid, which contains carbon-carbon double bond and carboxyl structure in the molecule, so a series of compounds can be derived to form a large class of acrylic acid products. At present, a unique acrylic acid industry has formed in the field of modern chemical industry, and it has become an important derivative of propylene like polypropylene, acrylonitrile, and propylene oxide. The excellent polymerization and esterification ability of acrylic acid provides an extremely important intermediate for the synthesis and preparation of various fine chemicals. [0003] At present, the "double tower method" is generally used to purify acrylic acid. Using this method, a light removal tower is needed. When the existing acrylic acid purification and light removal tower ...

AI Technical Summary

Problems solved by technology

[0003]At present, the "double tower method" is generally used to purify acrylic acid. Using this method, a light removal tower is needed. The existing acrylic acid purification and light removal tower is in use At the same time, the mixed solution containing toluene and water at the bottom is separated in the liquid tank by the method of standing and stratifying. This method takes a long time to separate toluene and water, which increases the production cycle of acrylic acid, thereby reducing the production efficiency of acrylic acid.

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